function checkBrowser(){
    this.ver=navigator.appVersion
    this.dom=document.getElementById?1:0
    this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0;
	this.ie4=(document.all && !this.dom)?1:0;
    this.ns5=(this.dom && parseInt(this.ver) >= 5) ?1:0;
    this.ns4=(document.layers && !this.dom)?1:0;
	this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom)?1:0;
    this.bw=(this.ie5 || this.ie6 || this.ie4 || this.ns4 || this.ns5);
    return this
}
bw=new checkBrowser();
var speed=50
var loop, timer
var dir="up";
var arrow=1;
function makeObj(obj,nest){
    nest=(!nest) ? '':'document.'+nest+'.'
    this.el=bw.dom?document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?eval(nest+'document.'+obj):0;
    this.css=bw.dom?document.getElementById(obj).style:bw.ie4?document.all[obj].style:bw.ns4?eval(nest+'document.'+obj):0;
    this.scrollHeight=250//bw.ns4?this.css.document.height:this.el.offsetHeight
    this.clipHeight=bw.ns4?this.css.clip.height:this.el.offsetHeight
    this.up=goUp;
	this.down=goDown;
    this.moveIt=moveIt; this.x; this.y;
    this.obj = obj + "Object"
    eval(this.obj + "=this")
    return this
}
function moveIt(x,y){
    this.x=x;this.y=y
    this.css.left=this.x
    this.css.top=this.y
}
function goDown(move){
        if(this.y > -this.scrollHeight ){
              this.moveIt(0,this.y-move) ;
               if(loop) setTimeout(this.obj+".down("+move+")",speed)
			   dir="up";
       }
	   else if(arrow)
	   {
	   		Scroll(-1)
			dir="down";
	   }
}
function goUp(move){
        if(this.y<0){
           this.moveIt(0,this.y-move)
           if(loop) setTimeout(this.obj+".up("+move+")",speed)
		   dir="down";
        }
		else if(arrow)
		{
			Scroll(+1);
			dir="up";
		}
}

function Scroll(speed,arr){
        if(loaded){
			if(typeof(arr)=="undefined"){
				arrow=1;
			}
			else{
				arrow=arr;
			}
                loop=true;
                if(speed>0) oScroll.down(speed)
                else oScroll.up(speed)
        }
}
function Chk_Scroll()
{
	if(dir=="up")
		Scroll(+1);
	else if(dir=="down")
		Scroll(-1)
		
}
function noScroll(){
    loop=false
    if(timer) clearTimeout(timer)
}
var loaded;
function scrollInit(length){
    oCont=new makeObj('divcont')
    oScroll=new makeObj('divtext','divcont')
    oScroll.scrollHeight = length
    oScroll.moveIt(0,0)
    oCont.css.visibility='visible'
    loaded=true;
}